This read-only Gauge32 expresses this NetChannel or filter's byte count as a percentage of an overall reference total, scaled by 1000 like nlFramesPercent. Comparing nlBytesPercent to nlFramesPercent for the same row tells the admin whether this channel's share of frames matches its share of overall bandwidth, or whether its frames are unusually large or small relative to the rest. For example, a channel with a much higher nlBytesPercent than nlFramesPercent would indicate it carries fewer but larger frames than the network average.